The rollerball pen, with a 0.1 mm lead and a line width of 0.6 mm, is an ideal writing instrument for work. Thanks to the rubber tip, mistakes are quickly erased. The rollerball pen is robust and fits perfectly in the hand. The pen has a refill with a diameter of 1 mm. Even when writing quickly and fluently, a clean typeface is produced.Don't worry if a mistake happens when taking notes. Thanks to the rubber tip at the end of the barrel, you can erase mistakes in numbers and letters without leaving any residue. You can then write directly over the spot again. Repeated erasing on the same position is possible without any problems. You close the writing instrument with a cap to prevent it from drying out. The model is refillable for a long service life.